MidWestOne Bank

FDIC-insured bank with its head office in Iowa City, Iowa, established in 1934 according to the FDIC.
This bank merged into Nicolet National Bank on 13 February 2026. Its history ends with its last Call Report.

MidWestOne Bank reported total assets of $6.3 bn at Q4 2025, its last Call Report before it merged into Nicolet National Bank. Its common equity tier 1 ratio was 12.88%, and an estimated 37.65% of domestic deposits were uninsured. Source: FDIC Call Report data, cross-checked against FFIEC filings.

What changed this quarter (Q3 2025 to Q4 2025)
  • Return on equity (ROE): up 0.49 pp on Q3 2025, to 10.22%
  • Bank equity capital: up 2.4% on Q3 2025, to $702.8 mn
  • Net loans and leases: up 2.4% on Q3 2025, to $4.5 bn
Total assets
$6.3 bn
+0.4% on a year earlier
CET1 capital ratio
12.88%
+0.02 pp on a year earlier
Return on equity
10.22%
+18.00 pp on a year earlier
Uninsured share of deposits
37.65%
+0.38 pp on a year earlier

Ranks compare banks in our US coverage that report each metric. Sparklines: the last ten years. Source: FDIC BankFind Suite (Call Report data), cross-checked against FFIEC Call Report filings. Calculations: EconoMonitor.

Overview

What stands out about MidWestOne Bank?

Its largest one-quarter change in total assets since Q1 2016 was +72.6% between Q1 2016 and Q2 2016, when it absorbed Central Bank.

How large is MidWestOne Bank?

At Q4 2025 the bank held $6.3 bn of assets. Deposits were $5.5 bn and net loans and leases $4.5 bn, a loan-to-deposit ratio of 81.87%. Securities of $1.1 bn made up 18.0% of assets.

Total assets rose 260.4% between Q1 2016 and Q4 2025, from $1.7 bn.

How much of its funding is uninsured?

An estimated 37.65% of domestic deposits were above the FDIC insurance limit at Q4 2025, -0.32 pp from the previous quarter and +0.38 pp from a year earlier.

Key facts, Q4 2025

MetricValueChange from a year earlierUS rank
Total assets$6.3 bn+0.4%
Total deposits$5.5 bn-0.1%
Net loans and leases$4.5 bn+5.3%
Bank equity capital$702.8 mn+6.4%
Common equity tier 1 (CET1) ratio12.88%+0.02 pp
Tier 1 leverage ratio10.50%+0.38 pp
Return on equity (ROE)10.22%+18.00 pp
Net interest margin3.63%+0.86 pp
Uninsured share of domestic deposits37.65%+0.38 pp
Noncurrent loans to total loans0.70%+0.20 pp
Net charge-offs to average loans0.43%+0.35 pp

US rank: rank among the banks in our coverage reporting each metric, 1 = highest unless marked 1 = lowest.

Balance sheet

Total assets, deposits and net loans, quarterly, Q1 2016 to Q4 2025. Dashed amber lines mark the mergers and acquisitions listed under Mergers and acquisitions.

Total assets, deposits and net loans of MidWestOne Bank each quarter; total assets were $6.3 bn at Q4 2025$836mn$2.4bn$4.0bn$5.5bn$7.1bn2018202020222024First National Bank of Muscatine merged inFirst National Bank in Fairfield merged inThe Bank of Denver merged inTotal assets$6.3bnDeposits$5.5bnNet loans$4.5bnTotal assets, deposits and net loans of MidWestOne Bank each quarter; total assets were $6.3 bn at Q4 2025$836mn$2.9bn$5.0bn$7.1bn20202024
  • Total assets $6.3bn
  • Deposits $5.5bn
  • Net loans $4.5bn
USD bn. Source: FDIC BankFind Suite, Call Report data.

Capital and securities

The common equity tier 1 (CET1) ratio was 12.88% at Q4 2025, +0.02 pp from a year earlier. Since Q1 2016 it has ranged from 10.15% (Q2 2019) to 13.02% (Q1 2025). At Q4 2025 the tier 1 leverage ratio was 10.50% and the total risk-based capital ratio 14.02%. The median CET1 ratio of the size peers listed below was 12.04% at Q4 2025.

Available-for-sale securities showed an unrealized loss of $59.3 mn at Q4 2025; the loss narrowed by $39.3 mn from a year earlier.

Capital ratios

Percent of risk-weighted assets, except tier 1 leverage (percent of total assets)
CET1, total risk-based capital and tier 1 leverage ratios of MidWestOne Bank, quarterly, Q1 2016 to Q4 20258.6%10%12%13%15%2018202020222024Total capital14%CET113%Tier 1 leverage10%CET1, total risk-based capital and tier 1 leverage ratios of MidWestOne Bank, quarterly, Q1 2016 to Q4 20258.6%11%13%15%20202024
  • Total capital 14%
  • CET1 13%
  • Tier 1 leverage 10%
Quarterly, Q1 2016 to Q4 2025. Source: FDIC BankFind Suite, Call Report data.

Unrealized gains and losses on securities

Fair value minus amortized cost, USD bn
Unrealized gains and losses on available-for-sale and held-to-maturity securities of MidWestOne Bank, quarterly, Q1 2016 to Q4 2025-$254mn-$178mn-$102mn-$26mn$50mn2018202020222024Held to maturity$0Available for sale-$59mnUnrealized gains and losses on available-for-sale and held-to-maturity securities of MidWestOne Bank, quarterly, Q1 2016 to Q4 2025-$254mn-$153mn-$52mn$50mn20202024
  • Available for sale -$59mn
  • Held to maturity $0
Quarterly, Q1 2016 to Q4 2025. Source: FDIC BankFind Suite, Call Report data.

Profitability and loan quality

Return on equity was 10.22% for the year to Q4 2025, annualized, with a return on assets of 1.12% and a net interest margin of 3.63%. The margin was +0.86 pp from a year earlier. The efficiency ratio, noninterest expense as a share of revenue as the FDIC defines it, was 56.69%. Net income for the year to Q4 2025 was $69.6 mn, down 238.0% on the same period a year earlier. The median return on equity of its size peers was 7.79% for the same period.

Noncurrent loans, those 90 days or more past due or no longer accruing interest, were 0.70% of total loans at Q4 2025. Net charge-offs for the year to date were 0.43% of average loans, annualized.

Profitability

Percent, year to date, annualized as reported
Return on equity, net interest margin and return on assets of MidWestOne Bank, quarterly, Q1 2016 to Q4 2025-16%-7.7%0.7%9.0%17%2018202020222024Return on equity10%Net interest margin3.6%Return on assets1.1%Return on equity, net interest margin and return on assets of MidWestOne Bank, quarterly, Q1 2016 to Q4 2025-16%-4.9%6.2%17%20202024
  • Return on equity 10%
  • Net interest margin 3.6%
  • Return on assets 1.1%
Quarterly, Q1 2016 to Q4 2025. Source: FDIC BankFind Suite, Call Report data.

Compared with banks of similar size

The six banks ranked closest to MidWestOne Bank by total assets at Q4 2025, three above and three below where possible.

Among the seven banks in the table at Q4 2025, MidWestOne Bank is 4th by total assets. Its CET1 ratio of 12.88% compares with a peer median of 12.04%, its tier 1 leverage ratio of 10.50% compares with a peer median of 10.52%, and its return on equity of 10.22% compares with a peer median of 7.79%.

BankTotal assetsCET1 ratioReturn on equityUninsured share
TBK BANK, SSB$6.4 bn11.77%3.31%29.56%
Equity Bank$6.3 bn13.63%4.89%32.17%
United Fidelity Bank, fsb$6.3 bn10.94%-0.92%16.24%
MidWestOne Bank$6.3 bn12.88%10.22%37.65%
Shore United Bank$6.3 bn11.75%10.69%16.87%
Mercantile Bank$6.2 bn12.77%13.86%54.57%
Five Star Bank$6.2 bn12.32%12.58%42.72%

Q4 2025. Peer median (the six banks, excluding this one): CET1 12.04%, return on equity 7.79%. Source: FDIC BankFind Suite (Call Report data), cross-checked against FFIEC Call Report filings. Calculations: EconoMonitor.

Last eight quarters

MidWestOne Bank, as reported in its Call Reports.

From Q1 2024 to Q4 2025, total assets fell 7.2% to $6.3 bn, deposits fell 2.0% to $5.5 bn and bank equity capital rose 8.3% to $702.8 mn. Over the same period its full-time equivalent staff went from 775 to 752 and its offices went from 61 to 59.

MetricQ1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025
Total assets$6.7 bn$6.6 bn$6.5 bn$6.2 bn$6.2 bn$6.2 bn$6.2 bn$6.3 bn
Total deposits$5.6 bn$5.4 bn$5.4 bn$5.5 bn$5.5 bn$5.4 bn$5.5 bn$5.5 bn
Bank equity capital$649.2 mn$648.3 mn$664.1 mn$660.5 mn$676.1 mn$680.4 mn$686.2 mn$702.8 mn
Common equity tier 1 (CET1) ratio11.20%11.55%11.83%12.86%13.02%12.95%12.78%12.88%
Return on equity (ROE)3.91%7.69%-14.21%-7.78%10.45%8.82%9.73%10.22%
Uninsured share of domestic deposits36.58%36.97%36.59%37.27%37.26%36.63%37.97%37.65%
Full-time equivalent employees775762750757758761761752
Number of offices6159595958595959

Source: FDIC BankFind Suite (Call Report data), cross-checked against FFIEC Call Report filings. Calculations: EconoMonitor.

Mergers and acquisitions

Figures before and after each event are not like for like.

  1. . Absorbed Central Bank (FDIC certificate 27234).
  2. . Absorbed American Trust & Savings Bank (FDIC certificate 13150).
  3. . Absorbed American Bank & Trust Wisconsin (FDIC certificate 6183).
  4. . Absorbed First National Bank of Muscatine (FDIC certificate 961).
  5. . Absorbed First National Bank in Fairfield (FDIC certificate 13853).
  6. . Absorbed The Bank of Denver (FDIC certificate 17244).
  7. . Merged into Nicolet National Bank (FDIC certificate 57038).

Large one-quarter moves

  • Total assets changed by +72.6% in the quarter to 2016-06-30: Merger -Without Assistance; Participated in Absorbtion/Consolidation/Merger: acquired from Central Bank.
  • Total assets changed by +41.0% in the quarter to 2019-06-30: Absorbtion - Without Assistance; Participated in Absorbtion/Consolidation/Merger: acquired from American Bank & Trust Wisconsin, American Trust & Savings Bank.

Source: FDIC BankFind API, institution history. Moves of more than 25% in one quarter are checked against that history in our review.

Identifiers and sources

FDIC certificate
14843
Federal Reserve RSSD ID
836843
Head office
Iowa City, Iowa
Holding company
MIDWESTONE FINANCIAL GROUP INC (as reported to the FDIC)
Holding company RSSD ID
1245228
EconoMonitor ID
EMB-US-000323

Frequently asked questions

What were MidWestOne Bank's total assets?

$6.3 bn at Q4 2025, according to its Call Report as published by the FDIC.

Is MidWestOne Bank the same as its holding company?

No. This page covers the FDIC-insured bank (certificate 14843). Its holding company, MIDWESTONE FINANCIAL GROUP INC (as reported to the FDIC), reports separately to the Federal Reserve and, if its shares are listed, to the SEC.

How often is this page updated?

Every quarter, after MidWestOne Bank files its Call Report and the FDIC publishes it. This page shows Q4 2025, loaded on 19 October 2026; any sentence that uses an earlier quarter names it.

Where can I check these numbers?

In the FDIC BankFind Suite record for certificate 14843, and in the Call Reports filed under RSSD ID 836843 at the FFIEC Central Data Repository.

Sources and definitions

Definitions, Call Report fields and formulas for each metric: Bank equity capital, Uses community bank leverage ratio framework, Common equity tier 1 (CET1) ratio, Deposits in domestic offices, Efficiency ratio, Full-time equivalent employees, Loan-to-deposit ratio, Total loans and leases (gross), Net loans and leases, Net charge-offs to average loans, Net income (year to date), Net interest margin, Noncurrent loans to total loans, Number of offices, Return on assets (ROA), Return on equity (ROE), Available-for-sale securities (amortized cost), Available-for-sale securities (fair value), Held-to-maturity securities (amortized cost), Held-to-maturity securities (fair value), Total securities, Tier 1 leverage ratio, Total assets, Total deposits, Total equity capital, Total risk-based capital ratio, Uninsured share of domestic deposits, Estimated uninsured deposits, Unrealized gain/loss on available-for-sale securities, Unrealized gain/loss on held-to-maturity securities.

Checks for this release: Check A (database against the FDIC download) passed, Check B (FDIC against FFIEC Call Report filings) passed.

Source: FDIC BankFind Suite (Call Report data). EconoMonitor is not affiliated with or endorsed by the FDIC. FDIC BankFind Suite API.

Source: FFIEC Central Data Repository (Call Reports). EconoMonitor is not affiliated with or endorsed by the FFIEC. FFIEC Central Data Repository, Public Data Distribution.

Data and analysis only, not financial advice. The FDIC and the FFIEC do not endorse EconoMonitor. See the disclaimer and methodology.